Screen Space Reflections

If this effect is enabled, all Materials will use the depth buffer and the previous frame color to create more accurate reflection than reflection probes.

If a Reflection Plane is near a reflective surface, it will be used as the source for tracing rays more efficiently and fix the partial visibility problem.

However, the reflected color will not contain the following effects: Subsurface scattering, volumetrics, screen space reflections, screen space refractions.

参考

面板:

Render ‣ Screen Space Reflections

Refractions

Screen space refractions work the same way as screen space reflections and use the same parameters. But they are not enabled by default on all surfaces. Enabling it will have a small performance cost. You need to enable them in Material Properties ‣ Settings. Materials using screen space refractions will not cast screen space reflections.

Half Resolution Trace

Use half resolution ray tracing. Only cast a ray for every fourth pixel. Enabling this option drastically reduces video memory usage and increases performance at the cost of quality.

Trace Precision

Increases precision of the ray tracing but introduces more noise and lowers the maximum trace distance. Increased precision also increases performance cost.

厚（宽）度

在追踪过程中纳入深度缓存器内计算的像素厚度。较高的数值会将反射像素拉伸并增加闪烁。较低的数值可能会导致物体表面反射被裁剪或消失。

Edge Fading

Smoothly fade out the reflected and refracted pixels if they are close to a screen edge. The unit is in screen percentage.

钳制

Clamp the reflected color intensity to remove noise and Fireflies.

See also

Limitations.